Gregorius' mass 

Abraham van Diepenbeeck's "Gregorius' Mass" depicts the moment of a religious ceremony. The drawing uses pen and brown wash to create a sense of depth and light. The artist uses strong lines to define the figures of the priest and the kneeling figure, emphasizing their presence in the scene. The composition is framed by the arched doorway and the window, creating a sense of enclosure and focus. The drawing showcases van Diepenbeeck's ability to capture the solemnity and spirituality of the scene. "Gregorius' Mass" is a poignant depiction of religious devotion, highlighting the intimate and personal nature of faith.